Enhancement of photovoltaic properties in supramolecular polymer networks featuring a solar cell main-chain polymer H-bonded with conjugated cross-linkers
作者:Dhananjaya Patra、Mohan Ramesh、Duryodhan Sahu、Harihara Padhy、Chih-Wei Chu、Kung-Hwa Wei、Hong-Cheu Lin
DOI:10.1016/j.polymer.2012.01.026
日期:2012.3
Stille polymerization was employed to synthesize a low-band-gap (LBG) conjugated main-chain polymer PBTH consisting of bithiazole, dithieno[3,2-b:2′,3′-d]pyrroles (DTP), and pendent melamine derivatives. Novel supramolecular polymer networks PBTH/C and PBTH/F were developed by mixing proper molar amounts of polymer PBTH (containing melamine pendants) to be hydrogen-bonded (H-bonded) with complementary
Stille聚合用于合成由带噻唑,双硫杂[3,2-b:2',3'-d]吡咯(DTP)和侧链三聚氰胺衍生物组成的低带隙(LBG)共轭主链聚合物PBTH。新型超分子聚合物网络PBTH / C和PBTH / F是通过将适当摩尔量的待氢键结合(H键)的聚合物PBTH(含三聚氰胺侧基)与互补的基于尿嘧啶的共轭交联剂C和F(即,含有两个通过三键与咔唑和芴单元连接的对称尿嘧啶部分)。聚合物PBTH和交联剂C之间形成多个H键或F通过FT-IR测量确认。与聚合物PBTH相比,具有多个H键的超分子设计可以通过调整它们的光收集能力,HOMO能级来提高包含H键合聚合物网络PBTH / C和PBTH / F的聚合物太阳能电池(PSC)器件的光伏性能。和结晶度。最初,包含超分子聚合物网络PBTH / C和PBTH / F作为电子给体和[6,6]-苯基-C 71-丁酸甲酯(PC 70 BM)的PSC器件的功率转换效率(PCE)值电子受体(聚合物:PC